Zobrazeno 1 - 10
of 11 614
pro vyhledávání: '"Folsom, A."'
Autor:
Bellotti, S., Petit, P., Jeffers, S. V., Marsden, S. C., Morin, J., Vidotto, A. A., Folsom, C. P., See, V., Nascimento Jr, J. -D. do
The magnetic cycle on the Sun consists of two consecutive 11-yr sunspot cycles and exhibits a polarity reversal around sunspot maximum. Although solar dynamo theories have progressively become more sophisticated, the details as to how the dynamo sust
Externí odkaz:
http://arxiv.org/abs/2412.09365
We study zero attractors for polynomials built from partition statistics, complementing earlier work in this direction by Boyer, Goh, Parry, and others. In particular, using analytic methods we establish the zero attractor of partition $t$-hook polyn
Externí odkaz:
http://arxiv.org/abs/2408.16902
Autor:
Folsom, Dylan, Lisanti, Mariangela, Necib, Lina, Horta, Danny, Vogelsberger, Mark, Hernquist, Lars
Observations of the Milky Way's stellar halo find that it is predominantly comprised of a radially-biased population of stars, dubbed the Gaia Sausage--Enceladus, or GSE. These stars are thought to be debris from dwarf galaxy accretion early in the M
Externí odkaz:
http://arxiv.org/abs/2408.02723
More than 30% of white dwarfs exhibit atmospheric metals, which are understood to be from recent or ongoing accretion of circumstellar debris. In cool white dwarfs, surface motions should rapidly homogenise photospheric abundances, and the accreted h
Externí odkaz:
http://arxiv.org/abs/2407.17196
Autor:
Bellotti, S., Morin, J., Lehmann, L. T., Petit, P., Hussain, G. A. J., Donati, J. -F., Folsom, C. P., Carmona, A., Martioli, E., Klein, B., Fouque, P., Moutou, C., Alencar, S., Artigau, E., Boisse, I., Bouchy, F., Bouvier, J., Cook, N. J., Delfosse, X., Doyon, R., Hebrard, G.
Dynamo models of stellar magnetic fields for partly and fully convective stars are guided by observational constraints. Zeeman-Doppler imaging has revealed a variety of magnetic field geometries and, for fully convective stars in particular, a dichot
Externí odkaz:
http://arxiv.org/abs/2403.08590
Autor:
Katagiri, Kento, Kozioziemski, Bernard, Folsom, Eric, Göde, Sebastian, Wang, Yifan, Appel, Karen, Chalise, Darshan, Cook, Philip K., Eggert, Jon, Howard, Marylesa, Kim, Sungwon, Konôpková, Zuzana, Makita, Mikako, Nakatsutsumi, Motoaki, Nielsen, Martin M., Pelka, Alexander, Poulsen, Henning F., Preston, Thomas R., Reddy, Tharun, Schwinkendorf, Jan-Patrick, Seiboth, Frank, Simons, Hugh, Wang, Bihan, Yang, Wenge, Zastrau, Ulf, Kim, Hyunjung, Dresselhaus-Marais, Leora E.
Optimizing grain boundary characteristics in polycrystalline materials can improve their properties. Many processing methods have been developed for grain boundary manipulation, including the use of intense radiation in certain applications. In this
Externí odkaz:
http://arxiv.org/abs/2403.08089
Dynamically active planetary systems orbit a significant fraction of white dwarf stars. These stars often exhibit surface metals accreted from debris disks, which are detected through infrared excess or transiting structures. However, the full journe
Externí odkaz:
http://arxiv.org/abs/2402.16526
Discovering exoplanets orbiting young Suns can provide insight into the formation and early evolution of our own solar system, but the extreme magnetic activity of young stars obfuscates exoplanet detection. Here we monitor the long-term magnetic fie
Externí odkaz:
http://arxiv.org/abs/2401.12408
Autor:
Erba, C., Folsom, C. P., David-Uraz, A., Wade, G. A., Seadrow, S., Bellotti, S., Fossati, L., Petit, V., Shultz, M. E.
HD 54879 is the most recently discovered magnetic O-type star. Previous studies ruled out a rotation period shorter than 7 years, implying that HD 54879 is the second most slowly-rotating known magnetic O-type star. We report new high-resolution spec
Externí odkaz:
http://arxiv.org/abs/2401.09722
Autor:
Tsvetkova, S., Morin, J., Folsom, C. P., Bouquin, J. -B. Le, Alecian, E., Bellotti, S., Hussain, G., Kochukhov, O., Marsden, S. C., Neiner, C., Petit, P., Wade, G. A., collaboration, the BinaMIcS
This work is part of the BinaMIcS project, the aim of which is to understand the interaction between binarity and magnetism in close binary systems. All the studied spectroscopic binaries targeted by the BinaMIcS project encompass hot massive and int
Externí odkaz:
http://arxiv.org/abs/2312.04247